From Service Bulletins
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Bob is correct.
BUT, be aware that the drawing in the upper left corner, on the same page, although labeled as for a Tudor, is incorrect.
The Body Parts List that I posted tells you what you need to know. The 1930-1931 CCPU (82-B) uses the same window glass as the 45-A 1928-1928 Standard Coupe, 49-A 1928-1929 Special Coupe, 50-A 1929-1930 Sport Coupe, 54-A 1928-1929 Business Coupe, 55-A 1928-1929 Tudor, 55-B 1930-1931 Tudor, 130-A 1928-1930 De Luxe Delivery, 103-B 1930-1931 De Luxe Delivery and 135-A 1928-1929 Taxi-Cab. It will not fit any other body types.
Bob